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High-hydrophobicity water-based gloss oil and preparation method thereof

A water-based varnish, high hydrophobicity technology, used in textiles and papermaking, fiber raw material processing, paper coatings, etc., can solve problems such as low viscosity of coatings, inability to meet high hydrophobicity requirements for printed products, and difficult application.

Pending Publication Date: 2021-04-09
武汉迪赛新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this invention uses a large amount of water and alcohol to adjust the leveling, and the viscosity of the paint is relatively small, so it is difficult to apply to the field of paper printing, and it cannot meet the high hydrophobicity requirements of some printed products.

Method used

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  • High-hydrophobicity water-based gloss oil and preparation method thereof
  • High-hydrophobicity water-based gloss oil and preparation method thereof
  • High-hydrophobicity water-based gloss oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A highly hydrophobic water-based glazing oil, the water-based glazing oil consists of the following components by weight:

[0024]

[0025] The preparation method of the water-based glazing oil of this embodiment is as follows: take a modified low-Tg acrylic resin emulsion, add perfluoroalkyl ethyl acrylate, water-based wax emulsion, silica powder, dispersant, film-forming assistant to it in sequence Agent, defoamer and deionized water, after each component is added, mechanically stir for 5 minutes, then add the next component, until the addition is complete and stir for 5 minutes, the highly hydrophobic water-based varnish is obtained.

[0026] Evaluation:

[0027] Waterproof performance test:

[0028] Coat 170g of coated paper (unprinted), and use a 300-line color wheel to coat and polish at a temperature of 25°C and a humidity of 60%. After standing for 5 minutes, drip water to test its waterproof performance, see the display picture figure 1 .

[0029] Take 1...

Embodiment 2

[0037] A highly hydrophobic water-based glazing oil, the water-based glazing oil consists of the following components by weight:

[0038]

[0039]

[0040] The preparation method of the water-based glazing oil of this embodiment is the same as that of Embodiment 1.

[0041] Correlation performance detection is the same as embodiment 1.

Embodiment 3

[0043] A highly hydrophobic water-based glazing oil, the water-based glazing oil consists of the following components by weight:

[0044]

[0045] The preparation method of the water-based glazing oil of this embodiment is the same as that of Embodiment 1.

[0046] Correlation performance detection is the same as embodiment 1.

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Abstract

The invention relates to the technical field of printing coatings, and particularly discloses high-hydrophobicity water-based varnish and a preparation method thereof. The water-based varnish is prepared from the following components in parts by weight (based on 1000 parts of water-based varnish): 500-800 parts of modified low-Tg acrylic resin emulsion, 10-50 parts of perfluoroalkyl ethyl acrylate, 50-100 parts of water-based wax emulsion, 1-20 parts of silicon dioxide powder, 5-20 parts of dispersing agent, 10-50 parts of coalescing agent, 0.5-5 parts of defoaming agent and the balance of deionized water. The water-based gloss oil can be naturally dried and cured at normal temperature, a coating film has high hydrophobicity, the lotus leaf effect is achieved when water drops on the surface of the coating film, no organic solvent is contained, and a waterproof film has the advantages of high hydrophobicity, good gloss, good friction resistance and the like and has wide application prospects in the field of paper printing.

Description

technical field [0001] The invention relates to the technical field of printing coatings, in particular to a highly hydrophobic water-based varnish and a preparation method thereof. Background technique [0002] Water-based varnish is an important coating product in the paper printing industry. A layer of varnish is coated on the surface of printing paper to form a protective film, which can protect the paper and its color from waterproof and scratch resistance. In recent years, water-based varnishes have gradually replaced solvent-based varnishes and become mainstream products in the printing industry. [0003] General printing paper has higher requirements on moisture-proof and water-proof performance. The main material of ordinary water-based varnish is generally acrylic resin, amino resin and other conventional water-based resins. Due to the high-density pores of the paper and the hydrophilicity of the resin, it is difficult for the varnish to achieve a dense coating fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/20D21H19/12
CPCD21H19/20D21H19/12
Inventor 熊小梅梅丽明陈高清
Owner 武汉迪赛新材料有限公司
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